/Engine/Source/Editor/UnrealEd/Public/Subsystems/EditorAssetSubsystem.h
Delete assets that are already loaded. This is a Force Delete. It does not check if the assets have references in other Levels or by Actors. It will close all the asset editors and may clear the Transaction buffer (Undo History). Will try to mark the files as deleted.
True if the operation succeeds.
bool DeleteLoadedAssets ( const [TArray](API\Runtime\Core\Containers\TArray)< [UObject](API\Runtime\CoreUObject\UObject\UObject) * > & AssetsToDelete )